GB1331031A - Circuit arrangements for synchronising a plurality of variable frequency oscillators - Google Patents
Circuit arrangements for synchronising a plurality of variable frequency oscillatorsInfo
- Publication number
- GB1331031A GB1331031A GB40372A GB40372A GB1331031A GB 1331031 A GB1331031 A GB 1331031A GB 40372 A GB40372 A GB 40372A GB 40372 A GB40372 A GB 40372A GB 1331031 A GB1331031 A GB 1331031A
- Authority
- GB
- United Kingdom
- Prior art keywords
- clock
- oscillators
- synchronising
- frequency division
- variable frequency
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J3/00—Time-division multiplex systems
- H04J3/02—Details
- H04J3/06—Synchronising arrangements
- H04J3/0635—Clock or time synchronisation in a network
- H04J3/0676—Mutual
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Synchronisation In Digital Transmission Systems (AREA)
- Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)
Abstract
1331031 Multiplex pulse signalling SIEMENS AG 5 Jan 1972 403/72 Addition to 1221258 Heading H4L The system for synchronizing oscillators, e.g. clock generators in exchanges disclosed in the parent Specification, wherein the clock frequencies of the local oscillator and of the incoming signals are divided before being compared in a discriminator circuit, is modified to permit the interconnection of clock oscillators of differing basic frequencies. This is achieved by arranging that the timing pulses on the respective inputs are reduced by frequency division to a common repetition frequency, i.e. that produced by the divider operating on the output of the local generator. The dividers may be of the type which produce the required frequency division when averaged over a predetermined time interval.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19712100639 DE2100639C3 (en) | 1971-01-08 | 1971-01-08 | Circuit arrangement for the mutual synchronization of oscillators provided in the exchanges of a time division multiplex telecommunications network |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1331031A true GB1331031A (en) | 1973-09-19 |
Family
ID=5795371
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB40372A Expired GB1331031A (en) | 1971-01-08 | 1972-01-05 | Circuit arrangements for synchronising a plurality of variable frequency oscillators |
Country Status (7)
| Country | Link |
|---|---|
| AT (1) | AT322008B (en) |
| BE (1) | BE777835R (en) |
| CH (1) | CH537675A (en) |
| DE (1) | DE2100639C3 (en) |
| GB (1) | GB1331031A (en) |
| IT (1) | IT968043B (en) |
| LU (1) | LU64553A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT410154B (en) * | 1995-09-21 | 2003-02-25 | Frequentis Nachrichtentechnik Gmbh | Method of setting system cycle, and signal-switching system |
-
1971
- 1971-01-08 DE DE19712100639 patent/DE2100639C3/en not_active Expired
- 1971-12-30 IT IT3313071A patent/IT968043B/en active
-
1972
- 1972-01-03 CH CH4072A patent/CH537675A/en not_active IP Right Cessation
- 1972-01-04 AT AT4772A patent/AT322008B/en not_active IP Right Cessation
- 1972-01-05 GB GB40372A patent/GB1331031A/en not_active Expired
- 1972-01-06 LU LU64553A patent/LU64553A1/xx unknown
- 1972-01-07 BE BE777835A patent/BE777835R/en active
Also Published As
| Publication number | Publication date |
|---|---|
| IT968043B (en) | 1974-03-20 |
| CH537675A (en) | 1973-07-13 |
| DE2100639B2 (en) | 1978-08-10 |
| BE777835R (en) | 1972-07-07 |
| DE2100639C3 (en) | 1979-04-12 |
| LU64553A1 (en) | 1972-06-21 |
| AT322008B (en) | 1975-04-25 |
| DE2100639A1 (en) | 1972-07-20 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |